Methods of test for insulating materials for electrical purposes; insulation resistance of solid materials (IEC 60167:1964); German version HD 568 S1:1990
German title
Prüfverfahren für Elektroisolierstoffe; Isolationswiderstand von festen, isolierenden Werkstoffen (IEC 60167:1964); Deutsche Fassung HD 568 S1:1990
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